/**
 * Project Name:AndroidCrash
 * File Name:CrashHandler.java
 * Package Name:com.example.androidcrash
 * Date:2015-12-17上午11:03:44
 * Copyright (c) 2015, chenzhou1025@126.com All Rights Reserved.
 */

package com.wnhz.work.yz.utils;

import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.Build;
import android.os.Environment;
import android.os.Looper;
import android.util.Log;
import android.widget.Toast;

import com.wnhz.work.yz.BuildConfig;
import com.wnhz.work.yz.MyApplication;
import com.wnhz.work.yz.utils.xutils3.MyCallBack;
import com.wnhz.work.yz.utils.xutils3.XUtil;

import java.io.File;
import java.io.FileOutputStream;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.io.Writer;
import java.lang.Thread.UncaughtExceptionHandler;
import java.lang.reflect.Field;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

/**
 * ClassName:CrashHandler <br/>
 * Function: TODO ADD FUNCTION. <br/>
 * Reason:	 TODO ADD REASON. <br/>
 * Date:     2015-12-17 上午11:03:44 <br/>
 *
 * @author godma
 * @see
 * @since JDK 1.7
 */
public class CrashHandler implements UncaughtExceptionHandler {

    public static final String TAG = "CrashHandler";

    //系统默认的UncaughtException处理类
    private UncaughtExceptionHandler mDefaultHandler;
    //CrashHandler实例  
    private static CrashHandler INSTANCE = new CrashHandler();
    //程序的Context对象  
    private Context mContext;
    //用来存储设备信息和异常信息  
    private Map<String, String> infos = new HashMap<String, String>();

    //用于格式化日期,作为日志文件名的一部分  
    private DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");


    /**
     * 保证只有一个CrashHandler实例
     */
    private CrashHandler() {
    }

    /**
     * 获取CrashHandler实例 ,单例模式
     */
    public static CrashHandler getInstance() {
        return INSTANCE;
    }

    /**
     * 初始化
     *
     * @param context
     */
    public void init(Context context) {
        mContext = context;
        //获取系统默认的UncaughtException处理器  
        mDefaultHandler = Thread.getDefaultUncaughtExceptionHandler();
        //设置该CrashHandler为程序的默认处理器  
        Thread.setDefaultUncaughtExceptionHandler(this);
    }

    @Override
    public void uncaughtException(Thread thread, Throwable ex) {

        // TODO Auto-generated method stub
        if (!handleException(ex) && mDefaultHandler != null) {
            //如果用户没有处理则让系统默认的异常处理器来处理
            mDefaultHandler.uncaughtException(thread, ex);
        } else {
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                Log.e(TAG, "error : ", e);
            }
            //MyApplication.getInstance().exit();
            System.exit(0);
            //退出程序


            //  System.exit(1);
              /*  int nPid = android.os.Process.myPid();
                
	            android.os.Process.killProcess(nPid);*/
        }
    }


    /**
     * 自定义错误处理,收集错误信息 发送错误报告等操作均在此完成.
     *
     * @param ex
     * @return true:如果处理了该异常信息;否则返回false.
     */
    private boolean handleException(Throwable ex) {
        if (ex == null) {
            return false;
        }
        MyApplication.getInstance().flag = !MyApplication.getInstance().flag;
        if (MyApplication.getInstance().flag) {
            ex.printStackTrace();
            StringWriter sw = new StringWriter();
            ex.printStackTrace(new PrintWriter(sw, true));
            String str = sw.toString();
            DataCleanManager.clearAllCache(MyApplication.getInstance());
            String handSetInfo =
                    "手机型号:" + android.os.Build.MODEL +
                            ",SDK版本:" + android.os.Build.VERSION.SDK +
                            ",系统版本:" + android.os.Build.VERSION.RELEASE + ",软件版本:" + BuildConfig.VERSION_NAME;
            str += handSetInfo;
            Log.e("-----", str + "");
            upLoad(str);
            //使用Toast来显示异常信息
            new Thread() {
                @Override
                public void run() {
                    Looper.prepare();
                    Toast.makeText(mContext, "很抱歉,程序出现异常,即将退出.", Toast.LENGTH_LONG).show();
                    // MyApplication.getInstance().exit();
                    Looper.loop();
                }
            }.start();
            //收集设备参数信息
            collectDeviceInfo(mContext);
            //保存日志文件
            saveCrashInfo2File(ex);

        } else {
            // MyApplication.getInstance().exit();
            System.exit(0);
        }
        return true;
    }

    private void upLoad(String error_str) {
        Map<String, Object> map = new HashMap<>();
        map.put("error_str", error_str);
        XUtil.Post(Url.CATCHERROR, map, new MyCallBack<String>() {
            @Override
            public void onSuccess(String result) {
                super.onSuccess(result);
                Log.i("----", "onSuccess:= " + result);
            }

            @Override
            public void onFinished() {
                System.exit(0);
                System.runFinalizersOnExit(true);
                android.os.Process.killProcess(android.os.Process.myPid());
                super.onFinished();
            }

            @Override
            public void onError(Throwable ex, boolean isOnCallback) {
                super.onError(ex, isOnCallback);
            }
        });


    }

    /**
     * 收集设备参数信息
     *
     * @param ctx
     */
    public void collectDeviceInfo(Context ctx) {
        try {
            PackageManager pm = ctx.getPackageManager();
            PackageInfo pi = pm.getPackageInfo(ctx.getPackageName(), PackageManager.GET_ACTIVITIES);
            if (pi != null) {
                String versionName = pi.versionName == null ? "null" : pi.versionName;
                String versionCode = pi.versionCode + "";
                infos.put("versionName", versionName);
                infos.put("versionCode", versionCode);
            }
        } catch (NameNotFoundException e) {
            Log.e(TAG, "an error occured when collect package info", e);
        }
        //暴力反射 ,获取私有的信息  
        Field[] fields = Build.class.getDeclaredFields();
        for (Field field : fields) {
            try {
                field.setAccessible(true);
                infos.put(field.getName(), field.get(null).toString());
                Log.d(TAG, field.getName() + " : " + field.get(null));
            } catch (Exception e) {
                Log.e(TAG, "an error occured when collect crash info", e);
            }
        }
    }

    /**
     * 保存错误信息到文件中
     *
     * @param ex
     * @return 返回文件名称, 便于将文件传送到服务器
     */
    private String saveCrashInfo2File(Throwable ex) {

        StringBuffer sb = new StringBuffer();
        for (Map.Entry<String, String> entry : infos.entrySet()) {
            String key = entry.getKey();
            String value = entry.getValue();
            sb.append(key + "=" + value + "\n");
        }

        Writer writer = new StringWriter();
        PrintWriter printWriter = new PrintWriter(writer);
        ex.printStackTrace(printWriter);
        Throwable cause = ex.getCause();
        while (cause != null) {
            cause.printStackTrace(printWriter);
            cause = cause.getCause();
        }
        printWriter.close();
        String result = writer.toString();
        sb.append(result);
        try {
            long timestamp = System.currentTimeMillis();
            String time = formatter.format(new Date());
            String fileName = "crash-" + time + "-" + timestamp + ".log";
            if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
                String path = "/sdcard/crash/";
                File dir = new File(path);
                if (!dir.exists()) {
                    dir.mkdirs();
                }
                FileOutputStream fos = new FileOutputStream(path + fileName);
                fos.write(sb.toString().getBytes());
                fos.close();
            }
            return fileName;
        } catch (Exception e) {
            Log.e(TAG, "an error occured while writing file...", e);
        }
        return null;
    }
}

